@ThatDGuy:

Thank you for a great suggestion. I have implemented it the way you suggested, using both the "hint" inside the textbox, and adding a tip at the bottom of the form.

Other than that, I also made a further improvement to the emails going out. Previously the alert only showed the percentage change. I now added the actual values as well. For example, if you set up a 7 day 5% alert on MtGox, you would now get something like this

Mt.Gox BTC/USD just changed by 10.426% in 7 days
Current Price: 134.85248000
7 days ago 122.12001000

It makes it a lot easier to see what is going on.

@btcminer021 - thank you. The system is basically ready to go if you want email alerts. SMS and push messages coming soon!